US4355941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand truck construction
Assignee: Individual
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Filing: 1980-06-02
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Granted: 1982-10-26
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Expires: 2000-06-02
Abstract
Abstract An improved hand truck for loading, transporting and unloading of containerized materials which is characterized by a pivoted frame section which in cooperation with a manually actuated release mechanism provides a lever to simply push a container from the platform of the truck or push the platform away from the container to simply and easily unload the container where desired.
Inventors
- 👤 Clarence M. Lehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:07
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/14; B62B1/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
319 words
A portable load carrying hand truck comprising, in combination, a generally vertically disposed first frame portion pivotally connected at a position intermediate in ends to a second frame portion having an upper and lower end, said second frame portion normally disposed in parallel aligned relationship relative to said first frame portion, said first frame portion including an upper end forming an integral upper handle portion and a lower load engaging portion; said second frame portion having its upper end attached at said pivot connection and extending downwardly from said pivot connection with said first frame portion and including an axle means provided with wheel means and a platform fixed to and extending outwardly at approximately a right angle from the lowe end of said second frame portion; and means for releasably locking said first and second frame member in fixed paralle alignment with one another whereby said upper handle portion of said first frame portion is operable to manipulate said wheel means and platform into a load carrying position; and to independently pivot said lower load engaging portion of said first frame portion relative to said second frame portion upon release of said locking means; said locking means including an elongate rod member connected to said first frame portion for vertical slideable movement and disposed substantially along the vertical centerline of said first frame portion and includes a lower end portion extending downwardly towards said platform, a seat portion mounted on said platform adapted to receive said lower end portion to form a locked position; spring means mounted on said bar member to bias said bar member toward said seat and an actuating lever pivotally mounted at one end to said upper handle portion and to said rod member intermediate to the ends of said lever, the free end of said lever disposed closely adjacent to said upper handle portion for manipulation simultaneously with manipulation of said handle portion.
Claim 2
Dependent Claim
319 words
A portable load carrying hand truck comprising, in combination, a generally vertically disposed first frame portion pivotally connected at a position intermediate in ends to a second frame portion having an upper and lower end, said second frame portion normally disposed in parallel aligned relationship relative to said first frame portion, said first frame portion including an upper end forming an integral upper handle portion and a lower load engaging portion; said second frame portion having its upper end attached at said pivot connection and extending downwardly from said pivot connection with said first frame portion and including an axle means provided with wheel means and a platform fixed to and extending outwardly at approximately a right angle from the lowe end of said second frame portion; and means for releasably locking said first and second frame member in fixed paralle alignment with one another whereby said upper handle portion of said first frame portion is operable to manipulate said wheel means and platform into a load carrying position; and to independently pivot said lower load engaging portion of said first frame portion relative to said second frame portion upon release of said locking means; said locking means including an elongate rod member connected to said first frame portion for vertical slideable movement and disposed substantially along the vertical centerline of said first frame portion and includes a lower end portion extending downwardly towards said platform, a seat portion mounted on said platform adapted to receive said lower end portion to form a locked position; spring means mounted on said bar member to bias said bar member toward said seat and an actuating lever pivotally mounted at one end to said upper handle portion and to said rod member intermediate to the ends of said lever, the free end of said lever disposed closely adjacent to said upper handle portion for manipulation simultaneously with manipulation of said handle portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |